Home / 3,677.38-5,074.82-1,998.79

Finding the Fourth Proportional to 3,677.38, 5,074.82 and 1,998.79

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Solution

The fourth proportional to 3,677.38, 5,074.82 and 1,998.79 is: 2,758.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,677.38 : 5,074.82 = 1,998.79 : x
  2. Step 2: Convert to fraction form
    3,677.38/5,074.82 = 1,998.79/x
  3. Step 3: Cross multiply
    3,677.38x = 5,074.82 × 1,998.79
  4. Step 4: Simplify right side
    3,677.38x = 10,143,518.45
  5. Step 5: Solve for x
    x = 10,143,518.45/3,677.38
  6. Step 6: Final answer
    x = 2,758.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.